While I'm in agreement with your antipathy towards the Electoral College, and having learned a few things from you exegesis, I must still contend that your premises' are somewhat flawed.

First, there were more than 7 'Founding Fathers.' The wikipedia article to which you link names 7 of the 'key' founders and not the total number of founders.

Secondly, the Congress of 1787 met to address the complete failure of the Articles of Confederation. That is to say, they were meeting to address mistakes already made. Your blithe assessment that they simply cobbled something together and left it for others to repair elides the wholesale overhaul they were already doing.

And, lastly, your comparison of todays democratic countries to the innovations of 1787 are neither accurate nor pertinent, as you gloss over the fact of most, if not all, of todays democracies are rennovating on 1787's innovations. The concerns in 1787 were not to see that all people voted. They were balancing a fear of backsliding into monarchy (both John Adams and your hero Hamilton were suspected of being closet monarchists) with an equally potent fear of democracy descending into chaos. It was an experiment that was not, at the time, guaranteed of success.